MAX708 PDF Datasheet


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Description

This is Low-Cost / uP Supervisory Circuits. 19-4334; Rev. 5; 9, 95 Low-Cost, P Supervisory Circuits _______________General Description The MAX705-MAX708, MAX813L microprocessor ( P) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in P systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX705, MAX706, MAX813L provide four functions: 1) A reset output during power-up, power-down, and brownout conditions. 2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds. 3) A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V. 4) An active-low manual-reset input. The MAX707, MAX708 are the same as the MAX705, MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of RESET. Tw.